iankelling.org Git - distro-setup/blob - fixvpndns

   1 #!/bin/bash
   2 # I, Ian Kelling, follow the GNU license recommendations at
   3 # https://www.gnu.org/licenses/license-recommendations.en.html. They
   4 # recommend that small programs, < 300 lines, be licensed under the
   5 # Apache License 2.0. This file contains or is part of one or more small
   6 # programs. If a small program grows beyond 300 lines, I plan to switch
   7 # its license to GPL.
   8
   9 # Copyright 2024 Ian Kelling
  10
  11 # Licensed under the Apache License, Version 2.0 (the "License");
  12 # you may not use this file except in compliance with the License.
  13 # You may obtain a copy of the License at
  14
  15 #     http://www.apache.org/licenses/LICENSE-2.0
  16
  17 # Unless required by applicable law or agreed to in writing, software
  18 # distributed under the License is distributed on an "AS IS" BASIS,
  19 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  20 # See the License for the specific language governing permissions and
  21 # limitations under the License.
  22
  23 source /a/bin/bash-bear-trap/bash-bear
  24
  25 resolvuid=$(id -u systemd-resolve)
  26 case $EUID in
  27   0|$resolvuid) : ;;
  28   *) exec sudo -E "${BASH_SOURCE[0]}" "$@" ;;
  29 esac
  30
  31
  32 if ! resolvectl dnsovertls tunfsf &>/dev/null; then
  33   ## most likely the interface doesnt exist. if we wanted verbose output, then:
  34   # echo failed resolvectl dnsovertls tunfsf. rerunning:
  35   # resolvectl dnsovertls tunfsf ||:
  36   exit 0
  37 fi
  38 read -r _ link _ < <(resolvectl dnsovertls tunfsf)
  39 busctl call org.freedesktop.resolve1 /org/freedesktop/resolve1 org.freedesktop.resolve1.Manager SetLinkDNSOverTLS is $link no